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arXiv 2405.10570eess.IVcs.AI

急性心肌梗死MRI心肌分割与T2定量同步深度学习

Simultaneous Deep Learning of Myocardium Segmentation and T2 Quantification for Acute Myocardial Infarction MRI

Xiamen University(厦门大学);Zhongshan Hospital(中山医院);Fudan University(复旦大学)
Yirong Zhou, Chengyan Wang, Mengtian Lu, Kunyuan Guo, Zi Wang, Dan Ruan, Rui Guo, Peijun Zhao, Jianhua Wang, Naiming Wu, Jianzhong Lin, Yinyin Chen, Hang Jin, L… 展开作者

Yirong Zhou, Chengyan Wang, Mengtian Lu, Kunyuan Guo, Zi Wang, Dan Ruan, Rui Guo, Peijun Zhao, Jianhua Wang, Naiming Wu, Jianzhong Lin, Yinyin Chen, Hang Jin, Lianxin Xie, Lilan Wu, Liuhong Zhu, Jianjun Zhou, Congbo Cai, He Wang, Xiaobo Qu

AI总结:

针对心脏MRI中心肌分割与T2定量分离处理的局限,提出双任务网络SQNet,融合Transformer与CNN并采用T2细化融合解码器,在AMI数据集上分割Dice达89.3/89.2,T2定量Pearson系数0.84/0.93,优于现有方法。

摘要:

在心脏磁共振成像(MRI)分析中,同步进行心肌分割和T2定量对于评估心肌病理至关重要。现有方法通常分别处理这些任务,限制了其协同潜力。为解决这一问题,我们提出了SQNet,一种集成Transformer和卷积神经网络(CNN)组件的双任务网络。SQNet具有用于定量分析的T2细化融合解码器,利用Transformer的全局特征,以及具有多个局部区域监督的分割解码器以提高准确性。紧密耦合模块对齐并融合CNN和Transformer分支特征,使SQNet能够聚焦于心肌区域。在健康对照(HC)和急性心肌梗死患者(AMI)上的评估表明,与最先进方法(87.7/87.9)相比,分割Dice分数(89.3/89.2)更优。T2定量与HC/AMI的标签值产生强线性相关性(Pearson系数:0.84/0.93),表明映射准确。放射科医生评估证实SQNet的图像质量评分(分割4.60/4.58,T2定量4.32/4.42)优于最先进方法(分割4.50/4.44,T2定量3.59/4.37)。因此,SQNet提供了准确的同步分割和定量,增强了心脏疾病(如AMI)的诊断。

英文摘要:

In cardiac Magnetic Resonance Imaging (MRI) analysis, simultaneous myocardial segmentation and T2 quantification are crucial for assessing myocardial pathologies. Existing methods often address these tasks separately, limiting their synergistic potential. To address this, we propose SQNet, a dual-task network integrating Transformer and Convolutional Neural Network (CNN) components. SQNet features a T2-refine fusion decoder for quantitative analysis, leveraging global features from the Transformer, and a segmentation decoder with multiple local region supervision for enhanced accuracy. A tight coupling module aligns and fuses CNN and Transformer branch features, enabling SQNet to focus on myocardium regions. Evaluation on healthy controls (HC) and acute myocardial infarction patients (AMI) demonstrates superior segmentation dice scores (89.3/89.2) compared to state-of-the-art methods (87.7/87.9). T2 quantification yields strong linear correlations (Pearson coefficients: 0.84/0.93) with label values for HC/AMI, indicating accurate mapping. Radiologist evaluations confirm SQNet's superior image quality scores (4.60/4.58 for segmentation, 4.32/4.42 for T2 quantification) over state-of-the-art methods (4.50/4.44 for segmentation, 3.59/4.37 for T2 quantification). SQNet thus offers accurate simultaneous segmentation and quantification, enhancing cardiac disease diagnosis, such as AMI.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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